MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0335bef9440cae7dd60e617e31258a490b9598e3dfa1325bf79ca9eca5c4c720. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Formbook


Vendor detections: 13


Intelligence 13 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 0335bef9440cae7dd60e617e31258a490b9598e3dfa1325bf79ca9eca5c4c720
SHA3-384 hash: ba1ca64926642c6a98db5c80f52843ab9e75b9aa8ee4811f8d7dd9fca7d284facd5990bcb81f0e84d5a92e206802c738
SHA1 hash: 648353375cc7d337ab9686443da26bd83f927fab
MD5 hash: 1c466dc3a2468e2a7946ada1a20dfcac
humanhash: vegan-bacon-west-oscar
File name:Purchase Order.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:815'104 bytes
First seen:2023-06-14 09:23:11 UTC
Last seen:2023-06-16 13:30:50 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:UzNbsfcpvm3HAgfr2syoydz1EhdS4qXdV:aZRm3dr2oiz6HS4qX
Threatray 1'538 similar samples on MalwareBazaar
TLSH T160050280DAED4717D9FB27F8E06441700BB2B45E697AD35E1E81B0DA9A23F114B12F27
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter cocaman
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
275
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Purchase Order.exe
Verdict:
Suspicious activity
Analysis date:
2023-06-14 09:26:02 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/3d62dc60-b16f-43e3-9acd-8aa5edf8e4ac

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/398674/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.2104.19865.10248.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Searching for synchronization primitives
Creating a window
Sending a custom TCP request
Creating a process with a hidden window
Launching a process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
lolbin packed
Link:
https://www.filescan.io/uploads/648987342df0889bde9fff5c/reports/be3e4c16-6b68-4ec6-abe2-c2650a92d4ae/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/0335bef9440cae7dd60e617e31258a490b9598e3dfa1325bf79ca9eca5c4c720
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/644944bc-86f9-41e1-a4fb-474b22a30dbb
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1254325
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Scheduled temp file as task from temp location
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 887354 Sample: Purchase_Order.exe Startdate: 14/06/2023 Architecture: WINDOWS Score: 100 39 Malicious sample detected (through community Yara rule) 2->39 41 Sigma detected: Scheduled temp file as task from temp location 2->41 43 Multi AV Scanner detection for submitted file 2->43 45 4 other signatures 2->45 7 Purchase_Order.exe 7 2->7         started        11 bOyPSUY.exe 4 2->11         started        process3 file4 31 C:\Users\user\AppData\Roaming\bOyPSUY.exe, PE32 7->31 dropped 33 C:\Users\user\...\bOyPSUY.exe:Zone.Identifier, ASCII 7->33 dropped 35 C:\Users\user\AppData\Local\...\tmpD7C9.tmp, XML 7->35 dropped 37 C:\Users\user\...\Purchase_Order.exe.log, ASCII 7->37 dropped 47 Uses schtasks.exe or at.exe to add and modify task schedules 7->47 49 Adds a directory exclusion to Windows Defender 7->49 13 powershell.exe 21 7->13         started        15 schtasks.exe 1 7->15         started        17 RegSvcs.exe 7->17         started        23 2 other processes 7->23 51 Multi AV Scanner detection for dropped file 11->51 53 Machine Learning detection for dropped file 11->53 55 Writes to foreign memory regions 11->55 57 Injects a PE file into a foreign processes 11->57 19 schtasks.exe 1 11->19         started        21 RegSvcs.exe 11->21         started        signatures5 process6 process7 25 conhost.exe 13->25         started        27 conhost.exe 15->27         started        29 conhost.exe 19->29         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/0335bef9440cae7dd60e617e31258a490b9598e3dfa1325bf79ca9eca5c4c720/
Threat name:
ByteCode-MSIL.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-06-14 06:49:51 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=am2356kebsxh3vqomf7dcjmkjefzlghd36qtew7xtsu6zjoey4qa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
03f51ffa9c987630724a451ad872f52bf97bd257ad06b58b6194f5dec29c8f13
Formbook
2df55ec2cbfe5ba2ddfd9a597a1c2dcfe3c91f211ba611180c97443773f79732
Formbook
34a8585e0643993caaaa6c3fcd9933354087422062d3c887dada1d65b570bfb3
Formbook
70d226c93cae74dfc4fc991b3fc74957cfb08881f53c232ed87e0d22cc5e30f1
Formbook
8668cd0f536fc0fb2d750d9d4ed492ac9435a32b7ade9f3e427af470bab09bf9
Formbook
a022bc0ad88cce0b7ef8c68c7602003ff4150006503291b7ead2119ebdecb36d
Formbook
a79e68bc2d8643ff603ce0333efb343924760abc43edcc450c124fe4b9142c75
Formbook
af7efb93740b9b9ee4cd6580a3eefa8298558c9f06b463eb44b03394cde441d5
Formbook
d96b4d0c1efd573f0833df766811861d8b116e92383da4543993971306ecbe4d
Formbook
e83a100ef343119544c86c96100a05b5a710fc04479d6ac1673cc5ec6c8d11bf
Formbook
+ 1'528 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/230614-lc2cbsfd73/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Unpacked files
SH256 hash:
70382ea1b363da419e2b0e806739138db40b4ec2ea276de2f1aefbd46ee66ac9
MD5 hash:
c260a705d14d1209ee29f226099010a1
SHA1 hash:
f7a97ae4da5562d1064bc7c94d7b68e184361bcf
Detections:
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/522e1471-56a9-4dc7-833b-f130b5e6d364/
Parent samples :
d96b4d0c1efd573f0833df766811861d8b116e92383da4543993971306ecbe4d
70d226c93cae74dfc4fc991b3fc74957cfb08881f53c232ed87e0d22cc5e30f1
76541f045182cd4f956ea38e70aac522dd8cc95bec94eb16ff435ac732da3b97
22515e24bf09d7d7b9ed02436f05853d5174aac248eb79c2b32a82096c8b30a3
2df55ec2cbfe5ba2ddfd9a597a1c2dcfe3c91f211ba611180c97443773f79732
34a8585e0643993caaaa6c3fcd9933354087422062d3c887dada1d65b570bfb3
a022bc0ad88cce0b7ef8c68c7602003ff4150006503291b7ead2119ebdecb36d
03f51ffa9c987630724a451ad872f52bf97bd257ad06b58b6194f5dec29c8f13
395133081793df5c1542b9e77a64a5271d1b358c1a7db674108a7624a9104809
af7efb93740b9b9ee4cd6580a3eefa8298558c9f06b463eb44b03394cde441d5
0335bef9440cae7dd60e617e31258a490b9598e3dfa1325bf79ca9eca5c4c720
4e8d1df344f5009ab35ebb5fed59649cce3e0a9b7f27f312a7cc854eb74b889d
02dc237cae6224ab8277187f6574215e15b4ddd4bf5b2bddbedaa95fc077e4e2
14bd08ddfd5f3fbeffbe9adacf4662f83267492eb8a2ca70a5c7613050039dc9
3c4e179c3ad40c3916a358a7115d8b4ad6d957cb57cecbba7c979057e5370748
16ef953132f6f51c904ccd3e04c933c20110c1dcbab443059df7218392291d5f
2ea5fd6b8b0354c95a41470ae8cb816d0ffb61b6b34cd827ffa160c963b850ed
0978bd6c3a575dd054cd139eaecc851695800c859e61ed340b47c9d5bf0d0d38
ce9a0c42305d137c27b4f369996a15387ae6f0d1e391116f54e7733918083239
SH256 hash:
69ae0d2e1c3e2bbbe5183e41b3ac08a711b71c2740e59fab69abc6b463b249ae
MD5 hash:
4fc5c70a26e153516338b2bd4a6df5fb
SHA1 hash:
6d7e91edb55a50e3aeacf06752101ae672badc50
Link:
https://www.unpac.me/results/522e1471-56a9-4dc7-833b-f130b5e6d364/
SH256 hash:
52f358d201e81d3a0391cedd3042e2f957555b77aa49559f7fb810bbb7673ba1
MD5 hash:
c785ddc46141af772c75101d17c46a41
SHA1 hash:
e248723b6f60cc7607980d07172b64c33b2b2f15
Link:
https://www.unpac.me/results/522e1471-56a9-4dc7-833b-f130b5e6d364/
SH256 hash:
d6d27ed1939b8527bfaab77b5cda589e3cdc842639958f7b4b63aed35ac7a7ab
MD5 hash:
72b601a1609673f221ca537200e6f074
SHA1 hash:
9bd391169223d5d967cbda11e237b68204cb8511
Link:
https://www.unpac.me/results/522e1471-56a9-4dc7-833b-f130b5e6d364/
SH256 hash:
3086b382471a505c721e5881bed74b1bd414d55f9c7fd320a93cf5a715b9909b
MD5 hash:
8de0232c56c29212a4400c8b6ef4fa71
SHA1 hash:
631a2b8c90e795ae68d1f236dbae5b2d421c866d
Link:
https://www.unpac.me/results/522e1471-56a9-4dc7-833b-f130b5e6d364/
SH256 hash:
60736c401e9d0caf5bc565deb48ee87dc5e1b41b844950a8227dc4237e30f69e
MD5 hash:
9a633d504eb97d079fe45cd89eae7fec
SHA1 hash:
2cf81f49d01fe5feb1a8ce7ead03ed7939cd6aad
Link:
https://www.unpac.me/results/522e1471-56a9-4dc7-833b-f130b5e6d364/
SH256 hash:
0335bef9440cae7dd60e617e31258a490b9598e3dfa1325bf79ca9eca5c4c720
MD5 hash:
1c466dc3a2468e2a7946ada1a20dfcac
SHA1 hash:
648353375cc7d337ab9686443da26bd83f927fab
Link:
https://www.unpac.me/results/522e1471-56a9-4dc7-833b-f130b5e6d364/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/0335bef9440c/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/0335bef9440cae7dd60e617e31258a490b9598e3dfa1325bf79ca9eca5c4c720

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_imphash
Create hunting rule
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.
Rule name:win_formbook_w0
Create hunting rule
Author:@malgamy12

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

rar f701686581d339b09024a7da215bc7b88549349676b297040c69306a669acbbd

Formbook

Executable exe 0335bef9440cae7dd60e617e31258a490b9598e3dfa1325bf79ca9eca5c4c720

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 f701686581d339b09024a7da215bc7b88549349676b297040c69306a669acbbd
Cape
Cape
https://www.capesandbox.com/analysis/398674/
  
Dropped by
MD5 8f98da6710e79e2f833fa07211461bfe

Comments